Charles s



UNITED STATES PATENT OFFICE.

CHARLES S. LOGKWOOD, OF NEWARK, NEW JERSEY, ASSIGNOR TO HYATT ROLLER BEARING DIVISION, UNITED MOTORS CORPORATION,

OF HARRISON, NEW

JERSEY, A CORPORATION OFNEW YORK.

OSCILLA'IING-BUR MACHINE.

Specification of Letters latent.

'Application filed December 9, 1918. Serial 1 To. 265,956

To all whom it may concern Be it known that I, CHARLES S. LooKwooD, a citizen of the United States, residing at 496 Clinton avenue, Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Oscillating-Bur Machines, fully described and represented in the following specification and the accompanying drawings, forming a partof the same. 1 i V This invention relates tojthe 'means for dressing out or finishing the interior of a socket closed by checks at its opposite ends,

' and the invention is designed especially for dressing out or finishing the sockets in the periphery of a roller bearing cage, to receive the rolls.

Such a cage is readily made in one piece by casting tw angular heads integral with tie-bars which form space-bars between the several sockets. j

Insucha cage,th'e side'sof the space-bars are concaved to fit the sides'of'a cylindrical roll, and the means for dressing out such a socket consists of a cylindrical bur adapted to dress out the sockets to the size required to admit the rolls.

The heads of the cage form checks at the ends of the socket,so that the dressing tool can be introduced into the socket from its outer side only, and as the rotation of such a tool cannot be efi'ect-ed with 'a bur which fills the entire socket I have devised means for oscillating the bur during the movement of the bur and socket relatively toward one another, to permit theprogressive abrasion.

of the metal Pas the socket is gradually dressed or finished by the bur. l

I have shown herein two different means for supporting and oscillating the bur, but

do not limit myself to the precise .construction shown. The lnventlon also includes means forsustaining a roller bearing cage or other sock cage partly in section with the bur and its holder in two positions; Fig. 5 is a side view of a roller adapted to fill one of the cagesockets shown in Fig. 4. Figs. 4: and 5 are on a larger scale than Figs. 1 and 2. Fig.6

is a perspective view of part of the cageshowing the interior of the sockets Fig. 7

is a perspective view of a bur with a dove tail foot, this view being upon a'still larger scale; and Fig. 8 is a-plan'of a cage and an alternative means for supporting and oscillating the bur. 4

The bur a is shown in Fig. 7 with a surface toothed like a file and having a dovetail foot Z2 extended along one of its sides. 0 shows a bar-shaped holder with dovetail groove 6 in the end to receive the footof the bur, and is shown secured movaloly upon an offset'carrier d by means of a bolt fitted to a slot e in the holder..

The carrier is offset in relation to journals f, 7, which are shown in- Fig. l mounted in journal-bearings g and provided with arms 9 which are connected by the carrier (Z.

The journal-bearings g are mounted upon a bed A. I i

The crank-disk h is shown rotated by a pulley 71/ and connected by a link 2' to a crank-arm j upon the journal fof the car- 1 rier. The rotation of the disk oscillates the This construction'permits the socketed article (as a-cage shown herein) to be intro duced between the arms 9 during the dressing operation, and the socket gradually advanced upon the .bur until its axis is in line with the axes u, u, of the journals.

Three of the finished sockets m are shown at the righthand side of Fig. ft where the v nearer head n of the cage is broken away,

which shows the spacebars n in section with their sidesconcaved to form the walls of the socket.

To support such a. cage in an operative relation to the oscillating bur, it is mounted upon a temporary axle Z carried in bearings 0 upon a standard 1). This standard is shown in Figs. 2' and 3 fitted to a dovetail groove in the bed, and adjusted by a feedscrew 1". The standard is provided with a gage-screw g to limit its feeding movement.

The head 1" of the feed-screw 1" is shown squared in F ig. l to receive a crank for turn ing it. I

In Figs. 1 and 2 the cage is shown moved to the position where the bur is in the bottom of the socket, as shown in Fig, 4, and the gage-screw 9 operating as a stop.

The cage can be moved away from the bur to turn another socket into line therewith, the gage-screw controlling the depth to which the bur enters each socket.

The cagein such case is made of malleable metal like brass, adapted to be readily fin.- ished by the operation of the bur, and the mouth of the socket is formed by its advance upon the but, of suitable width to admit the roll to the socket,

Rolls 3 and a are shown in the cage in adjacent sockets, as they would appear when the cage is. finished and the rolls inserted. The roll-8 is shownwith a central hole, and the cage with a corresponding hole through which a pin 25 can be inserted and s'e'cured to hold the rolls'in the sockets.

The offset carrier 03 is shown in Figs.- 1 and. 3 supported by the two journals f, f, but an alternative construction is shown in Fig. 8 in which a carrier d issupported by a single journal 1 mounted in bearing- The bur a is shown formed with a shank or stem 0 fitted movably to a hole through the carrier and clamped therein, when acijuste'd by a set-screw 6.-

Such a means ofsupporting and oscillating the bore affords greater freedom or access to the bur and permits its operation upon such sockets in articles of difi'erent shape from the cage shownat a in Fig.- 8.

It is to -be'- understood that the burmay be. mounted upon any convenient carrier, and oscillated by any suitable means which' support it and oscillate it while it operates with in a socket, and such an oscillating burmaly be applied to sockets in various articles which are so shaped that they can be presented to the bur, and any suitable means may be employed to sustain, the article and move it to and from the bur.

It is obviously immaterial how thevbur is mounted upon the carrier which operates to oscillate it, and the connection between the two may be non-adjustable, if the bur be constructed to lie in the axis of the oscillating movement.

Having thus set forth the nature of the invention what is claimed herein is:

1. The means for dressing out a socket closed by cheeks at its opposite ends, which consists of a cylindrical bur adapted to enter the socket between. the said'cheeks, means for oscillating the bur, and means for moving the bur and socket relatively toward one another.

2. The means for dressing out a socket upon an article having checks at opposite ends of the socket, which consists of a cylindric'al bur adapted to enter the socket between the said cheeks, a carrier sustaining the bur and having journals projected .laterally from: the outer sides of such cheeks, means for oscillating the carrier upon said journals, and means for sustaining and moving the socketed article toward the bur during the dressing operation.

3.- A bur-oscillator comprising a cylindrical bur, a carrier adapted to oscillate around the axis of the said bur, means supporting the bur upon the carrier, and means for pressing a socketed article toward the bur t0 d-ressout theinte-rior of the socket.

4:. A bur-oscillator constructed according to claim 1 and having a holder with means for connecting the bur thereto, and means for securing the holder adjustably to the carrier;

5. In a bur-oscillator, the combination, with a bed, of journal-boxes in line thereon, an offset carrier journaled in the saidbOXGS, a holder secured upon the carrier, and a cylindrical bur carried by the holder in line with thesaid. journals, and means for pressing a socketed article toward the bur to dress out the interior of the socket.

6. In a bur-oscillator, the combination, with a bed, of journal-boxes in line thereon,-

an offset carrier journ'aled in the said boxes,

a bur sustained upon the, carrier between and in line with the said journals, a standard. mounted 'movably upon the bed to support a socketed article thereon: and means to adjust the standard to and from the journalboxes. I

7. In a bur-oscillator, the combination, with a bed, of a journal bearing thereon having a shaft therein with an offset carrier overhung from the bearing, means for mounting a cylindrical. bur upon the carrier in line with the shaft-journal, a standard mounted movably upon the bed with. a. bearing thereon, and a mandrel fitted. to retate in the bearing and adapted to sustain a cage, or. the like, having. a plurality of sockets in its margin.

8. A bur-oscillator constructed; according to claim 1 and having an adjustable stop to limit the movementof the article toward the,

bur.

In testimony whereof I have hereunto set my hand.

CHARLES S. LOCKWOOD.

Copies of this patezitmaj be obtained for five cents eacli, by addressing the Commissioner of Patents,

Washington, D. 6?. 

